Kane Chen (kane.chen@intel.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/18060
-gerrit
commit 772b49691e95c47a559b35880b41a5787d6240f5 Author: Kane Chen kane.chen@intel.com Date: Wed Jan 11 12:53:58 2017 +0800
soc/intel/apollolake: Allow USB2 eye pattern configuration in devicetree
This code allows people to override the usb2 eye pattern UPD settings for boards.
BUG=chrome-os-partner:61031 BRANCH=None TEST=Usb2 function ok and make sure fsp upd is overridden
Change-Id: I5fab620a29aba196edf1f24ffe6a1695de1e523e Signed-off-by: Kane Chen kane.chen@intel.com --- src/soc/intel/apollolake/chip.c | 32 +++++++++++++++++++++++++++++ src/soc/intel/apollolake/chip.h | 5 +++++ src/soc/intel/apollolake/include/soc/usb.h | 33 ++++++++++++++++++++++++++++++ 3 files changed, 70 insertions(+)
diff --git a/src/soc/intel/apollolake/chip.c b/src/soc/intel/apollolake/chip.c index a24ca33..1de41cf 100644 --- a/src/soc/intel/apollolake/chip.c +++ b/src/soc/intel/apollolake/chip.c @@ -436,6 +436,7 @@ void platform_fsp_silicon_init_params_cb(FSPS_UPD *silupd) { FSP_S_CONFIG *silconfig = &silupd->FspsConfig; static struct soc_intel_apollolake_config *cfg; + uint8_t port;
/* Load VBT before devicetree-specific config. */ silconfig->GraphicsConfigPtr = (uintptr_t)vbt; @@ -491,6 +492,37 @@ void platform_fsp_silicon_init_params_cb(FSPS_UPD *silupd) /* Bios config lockdown Audio clk and power gate */ silconfig->BiosCfgLockDown = cfg->hdaudio_bios_config_lockdown;
+ /* USB2 eye diagram settings per port */ + for (port = 0; port < APOLLOLAKE_USB2_PORT_MAX; port++) { + if (cfg->usb2eye[port].Usb20PerPortTxPeHalf != 0) + silconfig->PortUsb20PerPortTxPeHalf[port] = + cfg->usb2eye[port].Usb20PerPortTxPeHalf; + + if (cfg->usb2eye[port].Usb20PerPortPeTxiSet != 0) + silconfig->PortUsb20PerPortPeTxiSet[port] = + cfg->usb2eye[port].Usb20PerPortPeTxiSet; + + if (cfg->usb2eye[port].Usb20PerPortTxiSet != 0) + silconfig->PortUsb20PerPortTxiSet[port] = + cfg->usb2eye[port].Usb20PerPortTxiSet; + + if (cfg->usb2eye[port].Usb20HsSkewSel != 0) + silconfig->PortUsb20HsSkewSel[port] = + cfg->usb2eye[port].Usb20HsSkewSel; + + if (cfg->usb2eye[port].Usb20IUsbTxEmphasisEn != 0) + silconfig->PortUsb20IUsbTxEmphasisEn[port] = + cfg->usb2eye[port].Usb20IUsbTxEmphasisEn; + + if (cfg->usb2eye[port].Usb20PerPortRXISet != 0) + silconfig->PortUsb20PerPortRXISet[port] = + cfg->usb2eye[port].Usb20PerPortRXISet; + + if (cfg->usb2eye[port].Usb20HsNpreDrvSel != 0) + silconfig->PortUsb20HsNpreDrvSel[port] = + cfg->usb2eye[port].Usb20HsNpreDrvSel; + } + }
struct chip_operations soc_intel_apollolake_ops = { diff --git a/src/soc/intel/apollolake/chip.h b/src/soc/intel/apollolake/chip.h index 5f8fed9..d60ffbf 100644 --- a/src/soc/intel/apollolake/chip.h +++ b/src/soc/intel/apollolake/chip.h @@ -24,6 +24,7 @@ #include <soc/intel/common/lpss_i2c.h> #include <device/i2c.h> #include <soc/pm.h> +#include <soc/usb.h>
#define CLKREQ_DISABLED 0xf #define APOLLOLAKE_I2C_DEV_MAX 8 @@ -115,6 +116,10 @@ struct soc_intel_apollolake_config {
/* GPIO pin for PERST_0 */ uint16_t prt0_gpio; + + /* USB2 eye diagram settings per port */ + struct usb2_eye_per_port usb2eye[APOLLOLAKE_USB2_PORT_MAX]; + };
#endif /* _SOC_APOLLOLAKE_CHIP_H_ */ diff --git a/src/soc/intel/apollolake/include/soc/usb.h b/src/soc/intel/apollolake/include/soc/usb.h new file mode 100644 index 0000000..7220023 --- /dev/null +++ b/src/soc/intel/apollolake/include/soc/usb.h @@ -0,0 +1,33 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2017 Intel Corp. + * (Written by Kane Chen Kane.Chen@intel.com for Intel Corp.) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _SOC_APOLLOLAKE_USB_H_ +#define _SOC_APOLLOLAKE_USB_H_ + +#define APOLLOLAKE_USB2_PORT_MAX 8 + +struct usb2_eye_per_port { + uint8_t Usb20PerPortTxPeHalf; + uint8_t Usb20PerPortPeTxiSet; + uint8_t Usb20PerPortTxiSet; + uint8_t Usb20HsSkewSel; + uint8_t Usb20IUsbTxEmphasisEn; + uint8_t Usb20PerPortRXISet; + uint8_t Usb20HsNpreDrvSel; +}; + +#endif /* _SOC_APOLLOLAKE_USB_H_ */